"Klaus D. Witzel" <klaus.witzel at cobss.com> wrote in message

> Yes, if there really is some class traits that the instance traits depends 
> on, it would have value.

It shows up often when designing a DSL e.g. for state machines

  - FSMClassTrait: stateList, initialState, transitions
  - FSMInstanceTrait: currentState, doTransition: anEvent

> But I doubt that the class traits can then be  re-used (for instance 
> creation and/or class initialization)

Probably true.

- Sophie